- This topic has 2 replies, 2 voices, and was last updated 2 days ago by
♠️ MARCEL.
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Nov 12, 2025 at 4:43 PM #21201Bike Model = : GV 250 Aquila EFI
Hi, just to say hello from Scotland and to thank whoever made the post about the wrong plug being removed to change the engine oil. Got the thing back together and all working fine. I really like this wee bike even though it is a step down from my Kawasaki 650 versys (got too high for me and not comfortable on long trips) I wanted a lighter bike and cruiser. Currently having some charging issues, but have ordered an upgraded Rectifier/Regulator and will see what happens when it’s installed.
Kind regards
Robert
Kind regards
Robert -
Nov 12, 2025 at 4:56 PM #21202
Forgot to add I am 76 years old
Kind regards
Robert -
Nov 12, 2025 at 8:43 PM #21231
Hey Robert!
Welcome and yes the drain plug vs the gearbox plug. I wish the gearbox plug had a warning engraved under the casing to say “do not open this unless rebuilding gearbox!” but we would still miss it if the underside is very mucky!
Did you also test the rest of your electronics to make sure they are all up to date ? See the topic below:
Rectifier – How to Test Stator , Battery , Regulator – GT125R Carby
Ignore that it says GT125 , that’s its younger carb based sister but principle is the same.
Make a new topic with your findings ie…. “Electric tests on a GV250 EFi” , and we shall comment to see if you’re in good hands. There is also a service manual in this forum too for the EFi Gv250 too. It goes in to much more detail on how to test various sensors , so you’re caught out on a long trip , because a previous owner was neglectful towards it.
It’s a lot! – but take your time, do it bit by bit.
Forgive me if you can’t post pictures , I am fighting some bugs under the hood until you see a nice yellow-green button that says “Add Media / Upload Pictures” , i don’t want the site to be too technical to browse around. So i will be simplifying a lot of it & consolidating the forum , so its more unified.
Stay safe out there and 76 is a nice age , keep riding sir and stay warm this winter!
If i may ? Don’t use or fit heated grips , rubbish stuff… and very taxing on the stators and regulators. (If you replace a regulator, replace the stator unless the stator proves to be in good spec on your multi meter readings! – very crucial) — Go on Google and look for “KIES HEATED APPAREL” very good brand, they have heated gloves, vest , shoes , etc …. and they use their own power-brick which goes in your pocket. You can walk around feeling nice and warm , and charge the power brick at home after your trip.
Now that leaves the bike’s stator (already at max capacity) to feed the regulator and various & various(!) sensors scattered under the hood.
Regards
😉
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